97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<ruby id="wifpn"><small id="wifpn"></small></ruby>

<pre id="wifpn"><acronym id="wifpn"><cite id="wifpn"></cite></acronym></pre>

<pre id="wifpn"><strong id="wifpn"></strong></pre>

單項(xiàng)選擇題

A DNS server for a large network is experiencing performance problems. Which of the following options is the best solution to fix the problem？（）

A.Enable NIS
B.Purchase a larger server
C.Use /etc/hosts on all of the systems
D.Create secondary name servers throughout the network

你可能感興趣的試題

單項(xiàng)選擇題

An IP address is 198.37.16.23. Which of the following router’s IP addresses should be used to route traffic to the 193.130.56.0 network？（）

A.193.130.56.0
B.198.37.16.15
C.198.130.16.15
D.198.130.56.15

單項(xiàng)選擇題

A host is expected to be a mail relay or receiving endpoint. Which of the following daemons should be listening for connections on port 25？（）

A.ftpd
B.imapd
C.pop3d
D.sendmail

<dd id="t9kgj"></dd>

<pre id="t9kgj"><strong id="t9kgj"></strong></pre>